| |||
| 访问［接人］单元 | |||
| 存取部件; 访问单元 | |||
| 接入单元 | |||
| 接人单元; 存取单元 | |||
| |||
| 接人单元 (MHS) | |||
|
Access Unit : 90 phrases in 11 subjects |
| Air defense | 1 |
| Aviation | 8 |
| Communications | 1 |
| Computer networks | 3 |
| Electronics | 44 |
| General | 1 |
| Information technology | 8 |
| Multimedia | 1 |
| Space | 9 |
| Technology | 3 |
| Telecommunications | 11 |